Loom-shuttle.



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UNlTl lU STATE PATENT @FFIETQE.

WILLIAM F. DRAPER AND JONAS NORTHROP, OF HOPEDALE, MASSACHUSETTS; SAlDNORTHROP ASSIGNOR TO SAID DRAPER.

LOOM-SHUT'ILE.

T 0 all whom it may concern:

Be it known that we, W 11.1mm; F. DRAPER and J ONAS Nonrnnor, citizensof the United States, and residents of Hopedale, county of Worcester,State of Massachusetts, have invented certain new and usefulImprovements in Loom-Shuttles, of which the following is a full, clear,and exact specification.

Our present invention relates more particularly to loom shuttles adaptedfor use in automatic filling-replenishing looms in which a freshfilling-carrier or bobbin is inserted automatically in the shuttle toreplenish the running filling when necessary. Such shuttles have anopening in which the bobbin enters, and holding means to engage the heador butt of the bobbin and maintain it in proper position in the shuttle.The holding means comprise jaw-like members made integral with eachother and fastened in the shuttle, the free ends of the jaws grippingthe bobbin head, and an inclined guide inserted between the bases of thejaws with the ob ject of forcing the shuttle backward into position tobring the jaws into position to receive the bobbin-head if the shuttleis misplaced in the shuttle-box. Such jaws are expensive to make, theyare relatively and necessarily stiff and hard in their action andrequire very considerable force to be used to insert the bobbin anddrive out the preceding one. p j

Our present invention has for one of its objects the improvement of theholding jaws, whereby they can be made very cheaply, and also to makethe insertion and ejection of the bobbin easier.

- Another object of the invention is to provide such a jaw structurethat the inclined guide may be eliminated. This guide is necessary withholding-jaws as at present constructed, but it is objectionable in thatit tends to break bobbins which strike upon it, and furthermore, whenthe head or butt strikes the inclined guide the tip end of the bobbin isfrequently thrown down below the bottom of the shuttle. Although itusually recovers itself it breaks the filling in many" cases, and ourpresent invention overcomes these objectionable features.

To compensate for the different positions the shuttles may assnmesin theshuttle-box when filling is changed we have provided 1; e jaws with anincreased number of recesses or notches to engage the usual annularSpecification of Letters Patent.

Application filed February 13, 1908.

Patented Jan. 12, 1909.

Serial No. 415,637.

projections or rings on the bobbin-head, so that the bobbin will becaught and held when it descends at any one of a number of dilterentpoints relative to the jaws.

Figure 1 is a top plan view, partly broken out, of the holding end of aloom shuttle of the type referred to, with holding means embodying ourinvention mounted therein; Fig. 2 a partial longitudinal verticalsection on the line 22, Fig. 1; Fig. 3 is a horizontal section on theline 3-3, Fig. 2 with the butt of the bobbin in dotted lines; Fig. -t isa cross-section on the line et-l-, Fig. 1, looking toward the left; Fig.5 is a perspective view of one of the holding jaws, detached; Fig. 0 isa similar view of the retaining member to be referred to; Fig. 7 is aplan of the blank from which the-retaining bobbin, the head of which isshown in Fig,

1 as provided with usual annular projections or rings 4-, three of suchrings being generally employed. The shuttle-body is provided with alongitudinal recesso communicating with the bobbin-receiving opening 2,the recess being quite narrow, see Fig. 4:, and open at the top, withundercut portions or grooves 6 in its side walls near the top. By makingthe recess narrow as little of the wood 18 removed as is possible,strengthening the shuttle at the end. where it is needed.

lVe make the holding aws for the bobbin separate. and alike, so thatthey are reversible, avoiding the making of rights and lefts, and as thejaws are stamped or struck up from plate-metal they can be made verycheaply.

One of .thejaws is shown separately in Fig. 5, the free end or jawportion 7 having a number of upright pocket-like notches 8 formed on itsinner face, six being shown, to engage the bobbin rings 4 when thebobbin is inserted iuthe shuttle, and thebase of the jaw portion isbentinward at 9and terminates in a flat shank l0, apcrtured at 11. The j awmember is stamped or died out from plate metal and is of the same widthfrom one to the other end, and the setting in of the shank .10 bringsits inner face in the median line of the shuttle when the jaws areassembled, see Fig. 3,, the jaw portions proper, as 7 slightlyconverging toward their extremifee registering,

ties, when the shuttle is empty, but in Fig.

3'sa1d jaws are shown in the position assumed when grasping the butt ofthe bobbin, which latter is indicated by dotted lines. The metal ofwhich the jaw is made'is sufficiently resilient or springy to yieldreadily for the incoming or outgoing bobbin while yet possessingsuficient stillness to hold the through the shuttle-wood and through theholes 11 and corresponding holes in the fill ers, a nut 13 holding thebolt in place.

The retaining member, shown separately in Fig. 6, is made of a singlepiece of plate metal stamped out first in the form of the blank shown inFig. 7, and afterwards bent along the dotted lines into the shape shownin Fig. 6. Said retaining member comprises parallel and substantiallyrectangular top and bottom portions 1 1, 15', the top being wider thanthe bottom and extending laterally beyond the fillers 16, which are bentup from the side edges of the bottom portion 15 parallel to each otherand just leaving a sufficient space between them to tightly receive theshanks-10, the fillers having bolt holes 17. A rigid connection 18 formsa continuation of the top and bottom portions of the retaining member,at the outer end thereof, and crosses the ends of the jaw shanks,limiting their movement when inserted between the fillers, Figs. 2 and3. At its front end the top 14 is narrowed and bent down to form adepending tongue 19, overlapping at its lower end a segmentalenlargement 2Q of the bottom portion 15 of the retaining memher, thelower edges of the bent bases 90f the jaws resting upon the segmentalenlargement 20. r

The fillers form a rigid-sided, narrow housing in connection with thetop 14 and bottom 15, which housing receives with a tight lit the jawshanks 17 all registering, the jaws being positioned when the placed inthe shuttle.

The scribed are now put in the shuttle, the filled housing being pushedinto the recess or socket 5 and snugly filling it from side to side, thewider top 14 of-the housing sliding into the undercut grooves 6, asshown in Fig. 4, while the part 15 rests on the bottom of the recess.The bolt 12 is then applied and by the but being fixedl clamped and heldin the shuttle-body. ore and aft movement of the parts isprevented bythe bolt, and the snug fit of the housing in the recess 5 holds theaccurately retaining member is 10, the holes 11 and parts havingbeenassembled as de 13 is securely fixed, the parts retaining member fromany lateral or up and down movement, the jaw bases being securely heldbetween the top and bottom members 14 and 15, and between thefillerslti.

Vhile the shanks are rigidly held in the shuttle the jaws proper arefree to spring or separate for the admission or discharge of a bobbin,and this housing'and closing m ovement is much easier than areintegrally connec ed.

As usual the sides of the shuttle are interiorly recessed at 21, to givefree play to the jaws, thewalls of the two recesses being continuedaround the end of the bobbin opening 2to the upright edges of the recess5, but the shuttle wood is carried forward to the front edge of thebottom member 15 of the retaining member, to form an additional supportfor the segmental enlargement 20 andresist the downward thrust when abobbin is inserted in the shuttle, substantially as usual. It Wlll beseen that the jaws are quite long, and as they are provided with arelatively large number of notches there is considerable leewaypermitted forthe position of the incoming bobbin relatively to saidjaws.

The rings on the bobbin head may engage the notches either at the centerof the jaws o v 7 at their inner ends,

or at their outer ends,

but many case the bobbin will be firmly and properly held, andpositioned, ObVl-p ating the use of an inclined guide and thus doing:away-with the objections tothe use of such a guide. I

The construction is simple, cheap and efiicient, and the assemblingofthe parts and the securing of the same in the shuttle is quickly andeasily accomplished.

Having described our invention what we claim as new and desire to secureby Letters Patent is 1. A loom shuttle provided with a bobbin openingand having a longitudinal recess in the shuttle-wood at one end ofsaidopening, two oppositely positioned, separate and like resilient holdingjaws notched to receive the rings on the head of a filling-carrier, theshanks of the jaws being set in from the notched portions and placed inparallelism adjacent to each other insaid recess of the shuttle-body,and means to fixedly clamp the shanks in position, said means includingmetallic fillers interposed between the shanks and the sides of therecess.

2. In a loom shuttle having a recess in the shuttle-wood, two separateand reversible resilient holding jaws shaped to receive and hold thehead of a filling carrier, each jaw havin a flat shank set in from theplane of its holding portion, and means to coiiperate with both jaws andfixedly retain them in the shuttle, said means including a memher havingparallel side portions between which the shanks of the jaws areinserted,

having their free ends shanks and the sides of the recess, said fillersthe said member being inserted in the recess 1 in the shuttle-wood. 3.In a loom shuttle having a recess in the 1 shuttle-wood, two separateand like holdingjaws having their opposite free ends notched to receiveannular projections on the head of l a filling-carrier, and means tofixedly clamp the jaws in position in the shuttle, said means includinga member' det-achably inserted in the recess in the shuttle-wood, and inwhich member the jaws are detach-ably mounted.

4. In a loom shuttle having a longitudinal l recess in the shuttle-wood,two separate and like holding-jaws having their oppositely located andresilient free ends shaped to engage and hold the head of afilling-carrier, and means to fixedly hold the jaws in operativeposition in the shuttle, said means comprising a retaining member inwhich the jaws are detachably mounted, said member being inserted in therecess in the shuttle wood, 'and a bolt extended t 'ough said member,the portions of the jaws therein, and the shuttle-wood at opposite sidesof the recess.

A loom shuttle having a bobbin opening and a longitudinal reyess in theshuttlewood at one end thereof, two separate holding-jaws having their.free ends notched to engage rings on the bobbin head and having theirshanks set in from the planes of their free ends and placed face toface, a retaining member having parallel side portions interposedbetween the sides of the recess and the jaw shanks and having top andbottom portions overlapping the upper and lower edges of said shanks andthe side portions, the bottom portion of said retaining member having anextension upon which the bases "of the jaws are supported, and a holdingbolt extended transversely through the jaw shanks and the side portionsof the retaining member.

6. A loom shuttle having a bobbin opening and a longitudinal recess inthe shuttlewood at one end thereof, twoilseparate holding-jaws havingtheir free ends shaped to grasp the head of a bobbin and having theirphanks set inward and inserted in the recess face to face, metallicfillers between the forming integral partsof a retaming memjaws, toenter the recess,

her having top and bottom portions to hold v 7. A loom shuttle having abobbin open and a longitudinal recess in the shuttle:- one end thereof,the recess having grooves in its side walls, and a retaining membercomprising parallel top and bottom portions rigidly connected at theirouter ends, the top portion being wider and adapted to enter the groovesin the recess ing wood at while the bottom portion seats on the bottom'of the recess, and parallel fillers upturned from the side edges of thebottom portion of said retaining member, said bottom portion having asegmental enlargement at its inner end, combined with two separateholdingjaws having their free ends notched to engage rings on the bobbinhead and having their shanks setrin and inserted face to face betweenthe fillers, the bases of the jaws rests ing on' the segmentalenlargementyfan dholding bolt extended transversely through thejaw-shanks and fillers to secure the same in the shuttle. a 8. A loomshuttle having a bobbin opening and a longitudinal recess inthe shuttlewood at one end thereof, coinbined-itv thitwo separate holding-jawshaving their free ends shaped to grasp the head of a bobbin "and havingtheir shanks set in and placed face to face, a one-piece retainingmember adapted to embrace the outer sides, top and bottom edges of thejaw shanks, and provided'with and a bolt extended transversely anenlargement to support the bases of the. 7

said retaining member bein adapted I and a holding olt crossing therecess and passing, through the jaw shanks and the side portions of theretaining member, to hold said member and the jaws rigidly in theshuttle.

In testimony whereof we have signed our names to this specification inthe presence of two subscribing witnesses.

WILLIAM F. DRA'PER. JoNAs NonTI-mor.

Witnesses:

WENDELL Wnmtm s, EVERETT S. Vooo.

